HydroCad weir width restriction
HydroCad weir width restriction
(OP)
why does hydrocad restrict you to a 999.99ft weir width and how do you get around it? I am trying to route a breach that flows thru a box culvert and the roadway above will act as a trapezoidal weir but the overall with is much larger than 999.99 ft. How do i get around this or do i use another method? I need expert help please.
Thanks
Thanks





RE: HydroCad weir width restriction
Open the Settings|Units screen
Click the Custom button
Scroll down to the CrestLen parameter and check the box
Enter a larger maximum value, as desired
Click OK twice
The custom parameter is stored in the specific project file.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
What is the exact title on the outlet screen?
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
If you use the Vee/Trap Weir you need to adjust CrestLen0.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
Given your previous post, I believe your notch angle is quite large - nearly 180 degrees - so the 20 degree minimum isn't a problem. But you'll probably find it easier to use the Custom Weir/Orifice option so you can enter the top width directly, rather than having to calulate the notch angle.
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
On Breaches:
The help info for MODELING A DAM BREAK says that i should also include any other normal outlet structures that will continue to function.The primary outlet will be insignificant for my breach which will begin at the crest esw elevation. Do i strip it out of the routing (also removing esw) and insert a breach trapezoidal section?
RE: HydroCad weir width restriction
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
I have a TR 60 breach routing i want to input. Is hydrocad using the same t and q formulas. Cant i just link my outflow data directly and bypass my subcatchment runoff for the original routing. I am trying to get to my inundation mapping portion of the project.
Thanks
RE: HydroCad weir width restriction
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: HydroCad weir width restriction
RE: HydroCad weir width restriction
Peter Smart
HydroCAD Software
www.hydrocad.net